[NBLUG/talk] Postfix mail routing

Zack Zatkin-Gold zg at nblug.org
Fri Sep 11 14:09:55 PDT 2015


I'm not sure about Postfix, but I've typically seen a return email with a
"User not found" error, so I'm guessing Postfix would do the same.

On Friday, September 11, 2015, Omar Eljumaily <omar at omnicode.com> wrote:

> I think this may also solve my problem.  If anybody can say yes or no
> really quickly, that would be greatly appreciated.
>
> http://www.postfix.org/transport.5.html
>
> Thanks,
>
> Omar
>
>
>
> On 9/11/2015 12:51 PM, Omar Eljumaily wrote:
>
>> Does anybody know how Postfix will route mail if a user doesn't exist on
>> one of the local machine's domains?
>>
>> I'm trying to set up GMail for business to handle "split delivery." Some
>> of the addresses get handled by GMail and some get handled by my server.
>> I'm wondering what will happen if my Postfix server sees an email address
>> that doesn't exist for my domain on that server. This will happen when
>> local users send mail through it as a relay. Will it send it along to the
>> proper MX record server, GMail, or will it send it back an error?
>>
>> I know I can try this, and I will do it over the weekend regardless, but
>> I was wondering if anybody knows what to expect.
>>
>> Thanks,
>>
>> Omar
>>
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>
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